83 300D turbo

Check out the first pic. The hose connector broke and so I am temporarily running hoses into hoses until I get a new part (which makes me wonder why they used that male connector piece to begin with).


But there's one hose here from the engine that had nothing connected to the other side. Should I plug it? Also do all the short hoses pull the same? ie, does it matter what plugs into the other side?

Finally 2nd pic. My car has the shakes. Is that a motor mount and, yes the pic sucks, but does it look shot?

Thanks,
Matt

PS - If anyone is experiencing the HARD CLUNK on downshift, check your vacuum hoses. I put up with it for years and finally figured it out.